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- package ConditionalStatements;
- import java.util.Scanner;
- public class AreaOfFigures_07 {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- String figure = scanner.nextLine();
- //проверяваме каква е фигурата
- //square, rectangle, circle или triangle
- // %s - String, %d - int, %f - double, %c - char, %n or \n - new line
- double area = 0;
- if(figure.equals("square")){
- double side = Double.parseDouble(scanner.nextLine());
- area = side * side;
- } else if (figure.equals("rectangle")) {
- double sideA = Double.parseDouble(scanner.nextLine());
- double sideB = Double.parseDouble(scanner.nextLine());
- area = sideA * sideB;
- } else if (figure.equals("circle")) {
- double radius = Double.parseDouble(scanner.nextLine());
- area = radius * radius * Math.PI;
- } else if (figure.equals("triangle")) {
- double side = Double.parseDouble(scanner.nextLine());
- double height = Double.parseDouble(scanner.nextLine());
- area = (side * height) / 2;
- }
- System.out.printf("%.3f", area);
- }
- }
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